Size: Medium Crystal safety: these are made of stainless steel diaper safety pins and plastic material which is resist bending, breaking or rusting. Heavy duty: its fold on a flat cloth diaper, and keep it right where it needs to be with seaty pins, fitted with locking head closures that easily and effectively cover the pin for safety. Crystal safety: these are made of stainless steel diaper safety pins and plastic material which is resist bending, breaking or rusting. Heavy duty: its fold on a flat cloth diaper, and keep it right where it needs to be with seaty pins, fitted with locking head closures that easily and effectively cover the pin for safety. Metal silver sewing pins: made of plastic head with stainless steel, high resistance, safety function lock Saftey pin: great for holding or adult cloth traditional diapers and sorting socks or gloves. STOBOK 50 Pcs Plasetic End Safety Pins Diaper Safety Jewels for Kids Dress Safety Garment Repair Pin Traditional Safety Pins Black Trim Bulk Diapers Stainless Steel Pins Bib White Fasten