Pumps exclusively fit the Plaine Products Aluminum Bottles
Large Pump = 16 oz bottle (shampoo, conditioner, hand wash, body wash, lotion, hair + body wash)
Medium Pump = 10oz bottle (deep conditioner, styling gel, purple shampoo)
Small Pump = 2.5oz Travel bottle (face wash, face moisturizer, travel size: shampoo, conditioner, body wash, beauty oil, hair+body wash)