THIS TOTALLY UNIQUE BRIDGE RAMP AUTOMATICALLY ADJUSTS AS IT IS PLACED TO SUIT ALL THRESHOLD TYPES, WITH NO USER ADJUSTMENT REQUIRED! Your benefits: So fast and easy to use, and perfect for any mobility device Low profile design for a shallow and safe gradient Two convenient sizes to cover thresholds of up to 6 inches or more All weather full width non-slip surface folds inside when carrying for extra safety, with integral comfort carrying handles

The R20 is one of the lightest power packs on the market, with a total carry weight of just 4.5kg, it is less than half the weight of other power packs currently available. This includes 3kg for the motor and a 1.4kg lithium-ion battery which can be disconnected and transported separately. This means that the R20 is easy to carry, store and transport for all users.