Package ContentYou will receive 20 pcs self-locking shelf pegs. Accommodating 3/4" / 20mm.thick shelves; the pegs diameter is 5mm / 0.19", the pegs length is 0.26" / 6.6mm. Sufficient quantity can meet your daily use needs.Quality material our locking shelf peg is made of quality plastic material, reliable and safe; Besides, compact design for easy storage, thus you can use for a long timeWide ApplicationNo use for any screws, the clear furniture shelf supporter are very easy to install by hand.Just push support pegs in the drilled hole, then you get a relaxing installation experience.Ideal for medicine cabinet, kitchen cabinet, furniture, wardrobe, closet, cupboard, bookcase, pantry shelving, etc.Fit for 20mm ShelfThe shelf holders fit for 3/4" / 20mm thick board, and 5mm / 0.19" in outer diameter of them (measured from the ridge), please care that drilled hole should be slightly smaller than its diameter. For more detailed size information, please refer to the picture.Practical designFeaturing self-locking design, these cabinet shelf clips are easy to use, which allows the shelf to easily and quickly snap into place; These clips can firmly fix the shelf, thus you can use it with confidence