Empty, reusable, and fillable bottles with smooth white press down disc caps. Boston Round shaped bottles are made of BPA-free PET plastic. Bottle capacity is 4 ounces (120ml). Bottle height: 3.74" (95 mm). Bottle diameter: 1.93" (49 mm). Cap size is 20/410 and is made of BPA-free material. Dispensing disc caps open by pushing down on one side and close by pushing down on the other side. Lightweight, professional, and high quality packaging. Use to easily store and secure travel and homemade products, shampoo, conditioner, gel, hair color, body soaps, paints, ink, art supplies, cleaning supplies, diluted essential oils, dish soap, hair treatments, and other liquids. Bottles are made in USA from new material. Caps are made in the USA or are imported. Recyclable.