1. Material: HDPE 2. Weight: about 250g/piece 3. Size: about 52x36 cm/piece 4. Application: skiing, grass skating, sand skating, ice skating, etc. 5. Applicable people: both adults and children 6. Features: highly elastic PE material, not easy to deform, good toughness, health and safety, ergonomically designed handle, comfortable grip, versatile, durable