Set of 4 40mm rubber wheels with M8 threaded bolts

【Material】: The caster wheels are made of soft rubber and TPE material, making them extremely quiet and ensuring they won't disturb anyone while working. They are highly elastic and offer flexible 360° rotation. 【Bearing Design】: Ball bearings, integrated bearings, steel ball steering, low-friction sealed bearings, flexible bearings, 360° rotation, stable, heat-resistant, high-speed, dustproof, and non-stick. The wheels are durable and quiet. They are the ideal choice for all DIY furniture on casters. 【Suitable for Various Floor Coverings】: Made of soft rubber, the rubber wheel is gentle on the floor. It offers elasticity, sturdiness, and durability. Suitable for all floor coverings such as ceramic tiles, concrete floors, marble, carpet, parquet, etc. Features: Without brake; 360° rotation allows for unrestricted freedom of movement, expanding the range of applications. The wheels are made of soft rubber and rust-proof TPE material for greater stability and durability. Suitable for various floor types. Built-in low-noise bearings ensure quiet operation. Material: Soft rubber and TPE. Color: Black. Wheel diameter: 40 mm. Thread: M8 x 15 mm. Load capacity: 20 kg per wheel. Package contents: 4 x 40 mm swivel casters with M8 x 15 mm threaded bolts.