Package Content: You will receive 8 pieces of self-adhesive casters in white and black (4 pieces of each color). Enough to meet your different needs. High Quality: The mini casters are made of ABS and steel balls, which are durable, wear-resistant, not easy to break, and have strong load-bearing capacity. 360 Degree Free Rotation: The self-adhesive casters can rotate 360° and roll smoothly and quietly, helping you easily move small furniture from multiple angles. Easy to Use: The small swivel furniture casters are designed with self-adhesive backing, easy to install without tools or drilling. The wheels also include pre-drilled screw holes for optional gluing or screwing. Widely Uses: Pulley casters can be used for a variety of small furniture, such as storage boxes, trash cans, flower pots, kitchen utensils, bedside tables, etc. It is the perfect accessory for home, office, bedroom, bathroom, kitchen, living room.