handy little trolley

This small trolley is convenient and saves my back. I use it to transport crops from the garden to the house. But I do not think the plastic shell can withstand 300 kg, because you can distort it in hand already, plastic twists. So to transport wood .... I know! Another weak point is the length of the handle. I am 1.75 meters and when I pull the cart loaded it raises and I take it in the legs. 20-30 cm more for the handle would avoid this problem. But a person of 1,60 m shall feast. I'll try to lengthen the handle myself, too bad. But otherwise it is good and as convenient and I recommend it. If you want to improve something, you could ride a hand brake, but the price will go up surely too.