DescriptionAre you looking for a professional, yet reasonable clamping collar? Are you in search of a sturdy, trustworthy tool that can do multiple jobs at once? If yes, look no further! Our shaft ring must meet your needs, this clamping collar is one of the best choices for you.Features-Color:Black -Material:Stainless Steel -Size:1.50X1.50X0.80cm/0.59X0.59X0.31in - Prevents office chair from sinking, improving work efficiency.No need to replace the gas cylinder, saving maintenance costs.- Easy to install, suitable for various office chair models.Made of iron materials, durable and reliable.- This ring clamp can keep firm and stable. Protects the floor, reducing scratches and noise.- This shaft ring is made of stainless steel material, durable and sturdy for long-lasting use.- Fine workmanship ensures practicality and durability. A good replacement accessory.