Comfort Grip, Heat Resistant, 50pc. Taylor Seville Originals Notions make your sewing life easier. The Comfort Grip Magic Pins Flat Head Extra Fine are 0.7mm. They have a comfort grip flat head that makes picking up and maintaining a grip on the pin, easy. These are strong and sharp pins which are ideal for multiple layers of fabric. The Comfort Grip Flat Head Magic Pins are also heat resistant, so if you iron over them, they will not be ruined. The pins come in a designer storage case that closes, so you wont lose any pins!