Ensure safety even on steep inclines! High Load Capacity: 3 Tons. Unit Quantity: 2PCS Material: Polypropylene,Polypropylene (PP) Features: Anti-Slip Surface,Lightweight,Portable,Reflective sticker,Drainage holes Suitable For: 3-Wheeled Scooter,4-Wheeled Scooter,Manual Wheelchair,Power Wheelchair.