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🛠️ Elevate your edges with precision-made German end caps — because details matter!
These 42mm black plastic end caps, made in Germany, are ribbed inserts designed to fit round tubes with 1.5-2mm wall thickness. Perfect for protecting tube ends and enabling smooth sliding on indoor hard floors, they are widely used in industrial shelving, metal furniture, and school chairs. Sold in convenient packs of 4 or more, they combine durability with versatile application for both commercial and domestic use.









| ASIN | B07B4Y29HV |
| Best Sellers Rank | 20,548 in DIY & Tools ( See Top 100 in DIY & Tools ) 73 in Furniture Sliders |
| Brand | Keay Vital Parts |
| Brand Name | Keay Vital Parts |
| Colour | Black |
| Country Of Origin | Germany |
| Customer Reviews | 4.3 out of 5 stars 670 Reviews |
| Grip Material | Plastic |
| Item Shape | Round |
| Manufacturer | Keay Vital Parts |
| Manufacturer Part Number | RRP-B-42-4 |
| Material | Plastic, Polyethylene (PE) |
| Material Type | Plastic, Polyethylene (PE) |
| Number of Items | 4 |
| Number of Pieces | 4 |
| Number of items | 4 |
| Recommended Uses For Product | Industrial shelving, Metal frames, Metal furniture, School chairs, Stackable chairs |
| Shape | Round |
| Surface Recommendation | Indoor Hard Flooring |
| Surface recommendation | Indoor Hard Flooring |
| Unit Count | 4 count |
R**S
Very Good Product
I have four reclining garden chairs that have some hinge covers missing. I found Keay Vital Parts and followed their instructions on how to measure for a good fit. These are tube insert plugs for use on metal pipes/tubes with a wall thickness 1.5-2mm. I took a gamble and ordered one packet (x 4 plugs) to see if they would work on my chairs. As the photo's show they were a success. I only had to trim a bit off the length for a snug fit. I have ordered another three packets to refurbish the remaining garden chairs.
J**L
Fits and does the job
Maybe a little expensive, but does a great job. Keeps the hole safe from pets and children getting injured if they fall over something else you may use to cover the hole
G**F
Good fit
Good fit for what I needed them for. Expensive though.
A**R
Good but expensive product.
Great fit well but a little over priced for what you get.
M**H
Simple device.
Plastic end cap,s. Used on my bike forks. Simple technology.
S**L
Top quality hard wearing ferrules
I needed replacement strong ferrules for use outside on concrete paving slabs. I chose from a wide range of plastics/rubbers, sizes inside/outside fitting ferrules and I have been well pleased with those I purchased.
P**R
Fitted 3/4 inch chair legs
Bought to replace plastic end caps on old metal chair legs. Legs seem to be 3/4inch diameter as they measured 19.3 to 19.5 mm so unsure whether to go 19 or 20mm, but these 20mm caps fitted very well. Chairs now slide easily over parquet flooring.
S**Y
Fits Well, Helpful Website
This cap fits really neatly into my 40mm rotary spike. It doesn't have an overhang but that doesn't matter as the near fit stops water getting in. Website was really helpful and accurate in explaining how to find the size you need. Pity I had to buy a pack of 4 as I only have one rotary dryer!
L**A
Tappi per pali recensioni giardino
Tappi per recensione giardino Perfetti di facile montaggio
R**N
Recibido y correcto.
Producto a justado a lo esperado.
M**N
Excellente
Remplacement à l'identique des embouts de chaise. Super facile juste un tout petit peu trop long il a suffi de diminuer d'un millimètre et c'était parfait
L**.
super
gute Qualität
J**Z
cumplen perfectamente con su cometido
Me ha gustado todo
Trustpilot
1 day ago
1 month ago