This bit is made out of stainless steel
The Kimblewick is a fixed cheek bit that is often used on horses and ponies that prove a little too strong in a snaffle; it is also often used by children to help them have some control should they need it. There are two main types of kimblewick, the slotted version that has two fixed rein slots in the cheek piece, or the plain cheek where the reins are attached to the cheek as you would a snaffle. Both types of Kimblewicks are used with a curb chain. The hanging cheek part if the bit from the cheek slot to the mouthpiece uses poll pressure and lip pressure, and various pressures in the mouth depending on the mouthpiece. When the rein is used, the curb chain should come into play, but not straight away, there should be some give in the rein before the curb chain tightens.
Single Jointed Bits
The single joint puts pressure on the sides of the tongue, on the lips and on the bars due to the nutcracker. The single jointed bits also may have a head raising action so would be less suitable for your horse if they ride with a high head carriage or above the bit. Also breeds such as Irish Draughts, may have particularly large tongues, therefore having less room in the mouth for a single jointed bit as this pushes the bit nearer the roof of the mouth, also Arabs and alike may have a low palate, both of these examples may not benefit from the single jointed bits as the nutcracker action may cause brushing of the roof of the mouth.