Plastic pin and post combination that can withstand 15 lbs. of pull strength for 15 seconds. We would be using this material on is a children's product so it cannot contain heavy metals and it must have consistency and quality to ensure all material will pass pull tests We are currently using a pin and post as in the enclosed pictures The material is used to secure a card deck, we use 4 different dimensions, 1/2", 5/8", 3/4" and 1" Please send your prices and availability