adjustable laptop stand

adjustable height laptop stand 1. Material: aluminum alloy. both sides could be used. An area of 13X40CM holes on the panel help conduct heat easily. 2. Panel Dimension: 450*285mm. The folded Dimension: 560*295*30MM. Color: black, Pink; N.W: 2.2KGS; Folding angle range: 0 360° Adjustable height ranget: 40-- 580MM; Products Bearing:15KGS 3. optional accessory: soft silicon rubber mat; treated by oxidation & frosting technics; suitable for 17' or smaller laptops. 4. optional accessory: silcone rubber USD1.5/PC. CTN size: 60*42*35CM G.W:12.5KG/CTN, N.W:11KG/CTN 5pcs/ctn 20''/1500PCS 40''3200PCS 40''HQ/3600PCS