Key benefits Silent and smooth rotation: speed bearings provide quiet operation and steady rolling, contributing to durability and performance. Durable and longlasting: wearresistant PU construction stands up to regular use for lightduty applications. Flexible sizing for compatibility: available in 64 mm, 68 mm, and 70 mm diameters, with a thickness of 24 mm to fit a range of devices. Easy movement for indoors: practical and handy design using advanced elastic material supports effortless indoor practice and recreational skating. Specifications Diameters: 64 mm, 68 mm, 70 mm Thickness: 24 mm Bearing type: speed, performance bearings Material: PU for wear resistance and strength Additional feature: elastic material for easy movement Material and performance Sturdy PU construction provides wear resistance and durability for regular lightduty use. performance bearings ensure smooth, comfortable rolling during operation. Elastic material contributes to practical handling and easy movement on indoor surfaces. Lightduty applications and compatibility Designed primarily for luggage, training wheels, or indoor roller skating for kids. Not recommended for use on uneven surfaces. Use scenarios Travel and luggage: or upgrade wheels on travel gear to achieve quieter, smoother rolling on smooth airport or hotel floors. Kids' indoor practice: suitable as training wheels or for beginner indoor roller skating, offering stable, easy movement. Recreational skating: appropriate for indoor practice and casual skating sessions, delivering a reliable glide on flat, smooth surfaces.