1.reasonable price
2.exactly
3.good quality
4 aluminum frame

Spec	Qty(pcs)	Meas(cm)	G.W./N.W.(kg)
12"/300	60	31×23x25	6.5/5.5
16"/400	60	41×23×25	7/6
20"/500	60	51×23×25	8/7
24"/600	60	61×23×25	8.5/7.5
32"/800	60	81×23×25	10.5/9.5
40"/1000	60	101×23×25	12/11