4Pcs/Set Paste Caster Pulley 360 Degrees Universal Sticky Wheel Low Noise Features: 1. This kind of sticky pulley works with low noise, making your work more convenient and easier because, it will not disturb your life. 2. This caster roller could be rotated 360 degrees, which is smooth when working, saving time and strength for you. 3. This kind of storage box pulley is easy to install, suitable for different kinds of storage box, you can order without worries. Specifications: Material: ABS, Stainless Steel. Size: As Picture Shows Package Included: 4Pcs/Set Sticky Pulleys Note: 1.Duetodifferentpersonalmeasurementmethods,therewillbeanerrorof1-3cm,pleaseunderstand (1inch=2.54cm) 2.Besidesdifferentcomputersdisplaycoloursdifferently,thecolouroftheactualitemmayvaryslightlyfromthebelowimages,thanksforyourunderstanding.