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.