Inno Sense Flexi Soft Inno Sense Flexi Soft bits are made of a very flexible elastic plastic with a flexible metal core in the bit. The flexibility makes this a friendly bit, suitable for sensitive horse mouths and less suitable for very strong horses. The plastic of the Inno Sense bits is FDA approved, the material is non-toxic and contains no plasticizers. Full cheek: The side pieces of a full cheek have 2 bars on the side and therefore cannot be pulled through the mouth. These bars create more pressure on the horse's cheeks, which makes maneuverability easier. A full cheek is stable and quiet in the mouth, ideal for training young horses. Depending on the type, thickness and material, a full cheek is given a sharper or softer effect. Straight mouthpiece features: A straight mouthpiece consists of 1 piece and gives pressure on the tongue, layers and lips. The shape and thickness of the mouthpiece determine where the pressure will be in the mouth. A straight mouthpiece with a tongue port gives more pressure on the layers and keeps the tongue free. The straighter and thicker the mouthpiece, the more pressure on the tongue.