4 PCS Nylon Caster Wheels with Brake, Black Swivel Castor M7.5 Threaded Stem Nut and Spanner, Plastic,

【Strong Material】The black plastic casters are made of high hardness nylon, with thicken center support to ensure it strong enough for daily use. 【Thoughtful Design】360 degree swivel with double track wheel makes the caster wheels more flexible, reaSonable brake makes it easy to use. 【Quantity Size】Package includes 4 pieces black threaded stem caster wheels and matched threaded nuts and spanner. The size is as picture shows. 【Easy to Install】We equipped matched install tool for you, just drill a 1.2cm depth hole for M7.5 thread nut, and then screw and connect them to finish. 【Wide application】The plastic casters will not hurt carpet or all floor, easily keep silent to bring your home family convenient quiet life. So it can widely use for furniture like office chair, table, suitcases, bookcase, small trolley, etc.