The Skil-Care gel learning pads are designed to be a cognitive learning aid and come in a variety of colors, letters, numbers and/or symbols. They filled with a non-toxic gel to stimulate both visual and tactile sensors. There are five different models: each offers visual perception, tactile awareness, color, and letter or number recognition. They come with a marble that can be move around throughout the pad to help improve finger dexterity, strength, and hand-eye coordination. They also can be used as a lap weight to reduce anxiety. The vinyl cover easily wipes clean