1. Material: rubber2. Weight: about 68g/piece for small size, 134g/piece for large size3. Size: small size is about 20x3 cm/piece, large size is about 30x3.5 cm/piece4. Application: dogs5. Features: rubber molar rod, soft material, good elasticity, abrasion and bite resistance, molar and clean teeth, spiral design, easy to clean, imitating bone shape, more convenient for dogs to bite

http://olla.gr/pet-rubber-molar-rods-are-playable-and-bite-resistant-training-dog-teeth-cleaning-toys-specification-large-green/