RELIABLE HEAVY DUTY CONSTRUCTION - Entire support bracket and internal parts are made of high grade steel, providing years effortless rolling and durability. The heavy duty design supports up to 650 lbs as a set of 5.
RELIABLE CONSTRUCTION - frame, stem and wheel axle all made of high-grade steel. The casters are made of durable hard plastic with a shell of top-quality transparent polyurethane.
EASY INSTALLATION - Just pull off the old casters from the chair base, with no need for any tools - and push the stem of your new office chair wheels into the socket, until the stem is firmly anchored.