Spring loaded gate caster is made of thick steel and very strong construction, PU material wheel is very durable, Swivels great and rolls smooth | Total mounting height is 10", Wheel diameter is 2", Mounting plate is 2.95" width by 1.77 height, Retractable 2-1/2" | Max load capacity up to 125lbs | Designed to allow gates to open and close freely by spring-loaded system adjusting height on uneven ground, Avoiding the sag of the gate. as a shock absorber make wheel rolling smoothly to save energy when you push gate | Easy to install on your gate, Come with 4 bolts, Fit to wood or metal gates

Spring loaded gate caster is made of thick steel and very strong construction, PU material wheel is very durable, Swivels great and rolls smooth | Total height is 11", wheel diameter is 2", mounting holes distance is 2.95" length by 1.77 width, retractable length is 2.55" | Max load capacity up to 125lbs | Designed to allow gates to open and close freely by spring-loaded system adjusting height on uneven ground, avoiding the sag of the gate. as a shock absorber make wheel rolling smoothly to save energy when you push gate | Easy to install on your gate, Come with bolts, Fit to wood or metal gates