... 60%.2.The dual-purposr foot(for the rock and sand ground or indoor floor),can be transformed,put and unloaded by ... easily in 10 seconds .6. Locking devicem,inn-,ounted design,sand -protecting,waterproof,antiseptic and hard wearing.7.Hold up pull ... are high ,middle and low, you can adjust optionallu base on the actual needmodelsectionMax. tube dimensionMax. heightno-life middle axlecontract heightMin ...