Jump'in Copper Insert Mouth Dee BitWe love this Jump in D Ring Bit With Copper Inserts because Its thin and non smooth cannons make this bit a bit harder than a regular one, but the fact that it's made out of copper brings a relaxing effect. A D ring bit helps create a frame and keeps the horse focused. It is a good alternative to a full cheek bit. The ergonomic cannons will fit closely to the horses mouth as a classic simple link. D ring bit 90 mm rings 12 mm thick cannons made of