Guitar Bridge pins are NOT bone
 
Guitar Saddle nut :
The  Natural Cattle Bone bridge saddle and nut set for acoustic guitar.
Made of natural Cattle bone except Guitar Bridge pins, bone is a very good material to make nut and saddle, hard, dense, yet fairly light.
If you want to select a nut and saddle that maximizes your tone and your guitar's playing condition, the bone nut and saddle is one great option.
Nut Size: Approx. 43 x 9 x 6mm / 1.69 x 0.35 x 0.24inch
Saddle Size: Approx. 72 x 9 x 3mm / 2.83 x 0.35 x 0.12inch
Guitar Bridge Pins Decription:
100% new
high quality and testing is fine
Item 100% like the picture shown
Colors:As picture shown
Guitar Bridge Pins Materials: Plastic

Package include:
1 x guitar nut
1 x guitar saddle
6 x Guitar Bridge pins