100 Assorted safety pins are 4 different sizes: 40 x 25mm – 30 x 30mm – 20 x 35mm – 10 x 40mm. Silver metal locking pins useful addition to your first aid kit - hold bandages and gauzes securely in place. Safety pins 100 for crafts projects jewellery clothes dressmaking and sewing. These safety pins are very strong and sturdy. Get creative or just make easier the daily household tasks in premium safety, with our user-friendly safety pins. Made with your convenience in mind, our heavy-duty safety pins feature a safety clasp which keeps the pins locked and cover the sharp end to protect your fingers from accidents.