Lightweight and flexible silicone bottle holder, featuring a breathable design. - Color: Light Blue - Material: Silicone - Design: Hollowed-out structure with circular openings - Brand: Oogaa Thank you for viewing. Used sparingly, and stored folded. This is a grip to help infants hold their bottles easily. Slim-type bottles fit easily, but I used a Pigeon bottle (like the one in the third photo), so there is a cut. Even with the cut, slim-type bottles could still be used. Thank you.