Description Quality Material - These cute plastic caster wheels are made of quality eco-friendly ABS material and sticky glue, easy to install without worries, Stable Robust Reliable Durable. Prefect Size - 1.77 x 1.1 x 0.55 or (4.5 x 2.8 x 1.4)cm. Weight: 0.28 oz or 8.2g The package includes 16 self-adhesive casters. No noise - The wheels are wear-resistant and smooth, no noise, and can move 360 degrees continuously. under load is more stable and safer, completely silent when in use. Easy to Use - Simply stick the universal wheel on the bottom of the box and place the pulley on the bottom of the box while 24 hours to use.Suitable for moving and cleaning, the smooth pulley allows you to lift heavy objects no longer a worry. Wide Application - Can be used in a variety of applications , such as storage boxes, trash cans, ordinary cartons and other items. But also a perfect DIY accessory, good for childrens toys, arts and crafts, small projects and so on. continued. Specification : Material: Durable and reliable ABS materials. Size: 1.77 x 1.1 or (4.5 x 2.8)cm. Height: 1.4 cm. Weight: 8.2 g. Color: Beige White. Limited load: less than 6 kg or (4 pieces). Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.