I'm selling these because I have extras! Quantity: 25 Weight capacity: 1kg Size: 14mm (W) x 23mm (H) Color: Black Can be used on gypsum board, corkboard, plywood, etc. The pins are angled downwards, so the holes are not visible unless you look from above, but the pins are the same thickness as regular push pins. Please be careful when using on wooden walls or other areas where you absolutely do not want to make holes. *Images from the 4th image onward are for reference and were taken from the original seller.