(*_*) Description : (*_*) Free Up Desk Space: Under desk cable management tray, organize your data cables, power cords, and outlet strips away from the floor, store notepaper, keys, notebooks and other office supplies to free up your desk space and keep your desk and floor clean and tidy. (*_*) C-clamp Design: Adjustable c-clamp design that quickly and easily attaches the cable management tray to the desk and accommodates different desk thicknesses. There is no drilling, which avoids the difficulty of punching holes in the wood and improves the stability. (*_*) Size : 36*20*18 cm (*_*) Must be read before purchase : for use of this underdesk tray horizontal distance between face of the desk and any vartical support under desk like full lenth of plywood board should be greater than 170 mm,in case of less than 170 mm clamp not able to tighten tray with the desk because clamp position in this case away from the desk face.This criteria only for this type of table desk which is supported by full lenth of plywood board. -> In such type of desk table which is supported by only four corner leg in this case no any problem related to distance.