ATIVAFITAdjustable Dumbbell Fitness Dial Dumbbell with Handle and Weight Plate for Home Gym 1 PCS

These worked great for a couple months. This morning while I was doing curls, nothing crazy, the dumbbell malfunctioned and released a weight plate, it fell straight onto my foot and smashed it. I was lucky I wasn't doing anything above my head, could have been very serious. These are a safety concern and people should know.

DO NOT BUY THIS PRODUCT OR WORK WITH THIS VENDOR; these adjustable dumbbells are DEFECTIVE AND DANGEROUS.After only 3 workouts, the lightest weight on one of my dumbbells dangerously releases the weight plate even when the safety lock is not pressed. These weights are not useable knowing that the weights might come off accidentally mid-exercise.After reaching out to the AvitaFit team for the past week through multiple emails and communication channels, I still haven't received a response while my 45-day product guarantee window is coming to a close. While I think this product is effective if it works as intended, in my product's current state with the lack of customer service, you should not purchase this dangerous product.I am hoping the vendor sees this review and addresses my defective product ASAP.

These are functional adjustable dumbbells, but for the price I was somewhat disappointed for a few reasons.The main issue is that these dumbbells are very loose, and as a result they are loud and bounce around a lot. The mechanism behind the twisting dial is pretty mechanically neat in that each plate has circular grooves and then the main shaft has channels with offset flat-sides that will catch those plates when rotated to the right position. The problem here is that this creates a mating between the plate and handle that is not tight at all.The plates have about a quarter-of-an-inch of play around the handle, which means that they are constantly clacking into each other, and if you are doing something like curls they shift all over the place throughout that range of motion. I've tried creating some quick shims out of a thick, felt-like material to fill the space between the plates and make everything more solid, but haven't had much luck so far.Also there are some smaller, secondary things which others have mentioned:- It is sold as a single unit, not a pair, and this is not especially clear from the amazon description- Weights are labeled in kilograms, which is also not particularly clear from the description (which goes out of its way to describe the product in terms of lbs.)In summary, these work but I wouldn't buy them again.

This dumbbell is perfect as both my husband and I can use it. You hold the red button in and turn the dial to change the weight setting. Then release the red button and lift up on the dumbbell. Sometimes I need to use two hands when putting it back to get it to slide into the correct spot, but that is not a big deal. The value is great as it replaces the need for many dumbbells of different weights.

These are used in an in-house home gym. Prior to purchase I looked for adjustable dumbbells for use in retirement and this unit appeared to be well-rated and economically priced compared to various name brands. Based on 6 months usage with the set being used 4-5 times weekly (presses, curls, sit-ups) they have proven reliably serviceable with none of the mechanical failures some reviewers have alerted us to. As a number of reviewers have noted, there are some foibles:(1) Binding plates. There was lighter plate "stick" on one of the units (after several month's use) and the plate fell off during the first rep. Upon examination of the plate, I noticed it was slightly burred on one surface. I examined others in the rack and where I found roughness used vegetable oil which appeared to solve the binding issue. Also, if you're concerned over binding, try half racking and returning before lifting out.(2) Detent button periodically "hesitates" on return after weight selection on one unit. On my set the columnar detent buttons are red with a black housing. Some of the photos supplied here show a white housing and others with a linear adjustor so there may be manufacturing variations. A slight left/right shifting of the selector knob restores the travel. Again, if you're suspicious that something's awry, try the half racking move after the selector dial "wiggle".(3) Re-racking issue. I get this occasionally with heavier settings. It appears that the plates left behind shift sightly in the rack when the unit is removed and this causes binding when trying to return the loaded dumbbell to the rack. The remedy is to examine and reposition the plates in the rack fully in their recesses and re-seat the dumbbell.