4Pcs Caster Pulley 360 Degrees Universal Wheel Sticky Low-noise Storage Box Roller Stainless Steel Pulley/Plastic Pulley
https://www.vogueparade.com/shopping/EN/100007498/1/1005002564734131/4pcs-caster-pulley-360-degrees-universal-wheel-sticky-low-noise-storage-box-roller-stainless-steel-pulleyplastic-pulley//