Works great for projects where you need the surface to stay flat and/or secure. Taylor Seville Originals Notions make your sewing and creative life easier. The Comfort Grip Magic T-Pins Size 24 is 1 1/2 inch by 1mm. They have a comfort grip handle that makes picking up and maintaining a grip on the pin, easy. The Comfort Grip MagicT-Pins are also heat resistant, so if you iron over them, they will not be ruined. They are also rust resistant. This pin is sturdy enough to use on needle work, mannequins, wig styling and even cubicle and message boards! The pins come in a designer storage case that closes, so you won't lose any pins!