Clear shelves for P.O.S. panels in clear glass. Each glass shelf requires two metallic P.O.S. shelf supports which can be purchased in this section below under metallic shelf supports and rods. Shelf Dimensions: Small 380 x 250 mm or 14-15/16" (L) x 9-7/8" (W) Medium 580 x 250 mm or 22-7/8" (L) x 9-7/8" (W) Large 780 x 250 mm or 30-11/16" (L) x 9-7/8" (W)