Product Name: Universal Gym Nylon Wearproof Bearing Pulley for Fitness Equipment Part 50-120mm
Material: Nylon
Size: 50/60/70/80/90/100/115/120mm
Colour: Black 
Performance: Non-scratch, Non-slip, Dust-proof, Waterproof, Rust-proof.

FLOOR PROTECTOR: This tube insert protect your floor from scratches 
REDUCE NOISE: This tube insert can reduce the noise, no more worry about suffering a harsh sound when moving the chairs 
EASY INSTALLATION: Each tube insert comes with ribs

Material: PVC/rubber
Size: 12.7/15/18/21/24mm 
Colour: Clear
Shape: Round
Performance: Non-scratch, Non-slip, Dust-proof, Waterproof, Rust-proof.

FLOOR PROTECTOR: This tube insert protect your floor from scratches 
REDUCE NOISE: This tube insert can reduce the noise, no more worry about suffering a harsh sound when moving the chairs 
EASY INSTALLATION: Each tube insert comes with ribs

FLOOR PROTECTOR: This tube insert protect your floor from scratches 
REDUCE NOISE: This tube insert can reduce the noise, no more worry about suffering a harsh sound when moving the chairs 
EASY INSTALLATION: Each tube insert comes with ribs

SIZE: 12mm 15mm 20mm 25mm 30mm 40mm
COLOR: Black/custom
TYPE: Square, diamond head
FLOOR PROTECTOR: This tube insert protect your floor from scratches 
REDUCE NOISE: This tube insert can reduce the noise, no more worry about suffering a harsh sound when moving the chairs 
EASY INSTALLATION: Each tube insert comes with ribs