Features 1.Usage: Nipple ruler can be used to measure nipple flange, help you quickly determine the right and suitable breast pump flange or other breast products. 2.Prevent Pain: Silicone nipple rulers help you find right breast pump flange or shield to avoid pain during suction, allow you enjoy the process of breastfeeding. 3.Easy Use: Hold nipple measuring ruler towards the edge on one side of the nipple and observe the size by looking in the mirror or taking a picture. Place the nipple in the largest circle you can comfortably fit into. 4.1.5m Soft Tape: With a 1.5m flexible ruler to observe your body changes during pregnancy and support the new mother body management during postpartum recovery. 5.Soft Silicone: Breast flange ruler made of silicone material, soft and skin friendly, foldable and comfortable, which can provides all round protection for new mothers. Specification Item Type: Nipple Ruler Material: Silicone Silicone Ruler Size: Approx. 17.8 x 10 x 0.3cm / 7 x 3.9 x 0.1in Package List 1 x Silicone Nipple Ruler 1 x 1.5m Soft Tape