Trust Inno Sense Loose Ring Gag Flexi Soft-20 BitBits with a flexible mouthpiece can be used for all horses but are especially suitable for young horses and horses with sensitive mouths. The plastic is FDA approved, which means that the material is non toxic and contains no plasticizers. In addition, the bits are very sturdy due to the use of a flexible core made of stainless steel. Flexible Great for all horses Especially good for young horses or ones with sensitive mouths FDA approved Stainless