Comfort Grip, Heat Resistant, 50pc. Taylor Seville Originals Notions make your sewing life easier. The Comfort Grip Magic Pins Extra Fine Silk are 1-7/16in and .4mm. They have a comfort grip head that makes picking up and maintaining a grip on the pin, easy. The Comfort Grip 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 won’t lose any pins!