PetAg Sure Grow 100 - Promotes Optimal Bone Development in Puppies Eight Weeks and Older - with Calcium, Phosphorus, and Vitamins A & D - 100 Chewable TabletsSUPPLEMENT FOR GROWING PUPPIES Sure Grow 100 is an oral nutritional supplement that helps promote optimal bone, ligament, and tendon development in puppies of all breeds, eight weeks and older, during periods of rapid growth. SPECIALLY FORMULATED Often used by professional breeders and handlers to obtain optimum breed structure, Sure Grow 100 is specially formulated to supply calcium, phosphorus, and vitamins A and D during periods of rapid growth.