SelfAdhesive Mini Casters: ABS wheels with a strong adhesive backing for quick, tool installation on lightweight boxes, crates, and small carts. Key benefits: easy to install, stable and reliable, and quiet rolling. The wheels won't scratch or mark floors and are designed for durable, longlasting use. Material and compatibility: made from durable ABS with a secure adhesive backing. Suitable for clean, smooth surfaces on lightweight items such as storage boxes, crates, small trailers, and portable play or utility items. Use scenarios: Home or office organization: attach to small storage boxes or crates to move them easily without lifting. Pet crates and portable playpens: reposition quietly on different floor surfaces with minimal noise. Lightduty carts or trailers: help move gear in garages, workshops, or during camping trips.