Opti-Snap Snap Tester (Button Pull Tester), to determine the holding or breaking strength of fasteners onto garments or toys, also as a Push Pull Tester for compression and tensile testing of small samples. Special attachments are available so that Jean Buttons, Four Hole Buttons & Garments Accessories such as Zippers, Bows, Appliqué, Toggles, Hooks/Bars, can also be tested. Ask us about this product Roaches machines meet specifications set by leading retailers such as: