These risers have a built-in sign space in the front, so you can identify merchandise by sliding in a sign or label. All measurements in inches Product Number Height Width Depth Price LR2 1 1/4 2 1/2 2 3/4 $2.95 1 1/2 x 3 1/2 sign space LR3 1 3/4 3 1/2 4 1/4 $3.50 1 x 2 1/2 sign space LR4 2 1/4 4 1/2 5 1/4 $4.75 2 1/2 x 5 1/2 sign space LR5 2 3/4 5 1/2 6 3/4 $6.00 2 x 4 1/2 sign space LR6 3 1/4 6 1/2 8 1/4 $7.40 3 x 6 1/2 sign space