Specifications: 
- weight per piece is 35-45g 
-length per piece is 7 - 9cm 
physical standards: 
no keratin feet larger than 2 cm and tolerance of up to 5% smaller than 2 cm. 
No feet fractures (exposed) with a tolerance of up to 3%. 
Competitive advantages 
well and high quality control , 
prompt delivery , 
customer's design and logo are welcome , 
competitive prices.