The D Luca Guitar foot stool easily adjusts to four different height adjustment positions. Ideal for classical or studio electric players the adjustments are at a slight angle from front to back which is ergonomically comfortable for most players. Highest position is 8 inches and lowest is 4 inches. Rubber end caps and non-slip rubber pad ensure stability fold-flat design for easy portability. Features: 4 Adjustable Height Positions Metal Construction Rubber End Caps and Non-Slip Rubber Pad Black Powder Coat Finish. Dimensions: 4 inches by 10 inches.