Free Rein Rainbow Hanging Cheek Double Jointed Lozenge Snaffle Baucher - These bits are each unique and vary through green, blue, purple and yellow colour on each bit

Available in 8 sizes 4", 4 1/4", 4 1/2", 4 3/4", 5", 5 1/4", 5 1/2" & 6"
 
The colour is created by the natural chemical reaction when titanium is immersed in water with an electrical current running through it.  These are stainless steel bits with a titanium plating

Please note each bit will vary in colour slightly from picture