Refillable Multi-Purpose Bottles: Suitable for water, cleaning solutions, detergent, automotive fluids, chemicals, gardening liquids, and DIY solutions. See content levels at a glance thanks to transparent HDPE plastic Standard 28mm Bottle Neck: Bottles work with many different heads, interchangeable closures and attachments (28/410 size). Impact-resistant, lightweight and flexible with excellent chemical resistance High-Density Polyethylene Construction: Made of HDPE for strength and durability. Will not split, deform or indent. Airtight, leak-proof seal for product storage and organisation Versatile Professional and Personal Use: Used by car detailers, crafters, schools, laboratories, engineering and manufacturing firms, commercial cleaners and kitchens. BPA-free, non-leak and transportable for cars and milk Wide Range of Applications: Suitable for domestic and commercial cleaners, washing up liquid, oils, poster paint, industrial products, inks, adhesives, laundry detergent, fabric softener, health and beauty, cosmetics and toiletries UK Made Quality: 500ml capacity HDPE plastic bottles manufactured in the UK with black screw top lids for secure closure and reliable storage of various liquids and solutions