FOOD GRADE BPA FREE SILICONE : Aktoo travel bottles are made of FDA approved and 100% BPA free food grade silicone,non-toxic, odorless, making it safe for other liquids like shampoo, conditioner, body lotion, body wash, face wash, sunblock, liquid soap, coconut oil, or other toiletries. Food grade silicon also suitable for salad dressing, ketchup, mustard etc. in your lunch box. 100% LEAK PROOF DESIGN and NO WASTE??TRIPLE LEAK PROOF! The Aktoo silicone travel bottles are designed with a cross-shaped opening in the outlet valve and 3-layer anti-leakage cap design! Bottle sealing design control the flow and makes zero wasting. Even if reverse the bottle,the inner liquid will not leak out.So that you don’t have to worry about the liquids leaks from every trip. TSA-APPROVED and EVA CLEAR TRAVEL CASE??Capacity marked on the bottle body,3oz with their perfect size is TSA Airline carry-on approved. 4 Pcs pack is great outdoor solution for business or personal travel. There is no need to worry about carrying too many big bottles when traveling. Come with a zippered clear toiletry bag, portable, compact, easy solution to security check-ins. HIGH QUALITY and EASY TO REFILL,CLEAN : These travel accessories are made of premium-quality silicone + PP material, super compression resistance, lightness and durable. Soft and squeezable body with wide mouth for easy refill and cleaning.The caps are made of high-quality plastic material, durable to prevent the connector break. Using dull polish technology and presenting translucent appearance,help to know the liquid usage. EASY TO DISTINGUISH with SWITCHABLE LABELS??6 different labels (shamp,lotion,cond,sun,soap and 1 is DIY) on the ID window and they are switchable, you could change the label in the neck of the cap according to the contents filled in the travel bottles. And also 4 different colors help you easily identify contents in the bottle.