Zinc-coated, solid steel blocker creates one large 4" block per stroke. Overall size is 4" x 4" x 12" tall. Handle is 6¾" wide. Easy to use. Moisten soil mix , push block maker down, turn, squeeze, and lift. Set filled block maker into a tray and release. Makes one huge 4" block with a 2" square dibble to receive medium size soil blocks. Great for larger plants like tomatoes, peppers, eggplant, melons, and cucumbers, and for late transplanting.