These collection bags with a closure ring are ideal for collecting and storing various substances. Made from durable white LDPE material, these bags measure 165x412mm, making them large enough to hold a variety of materials. The practical closure ring ensures the bag is securely closed and no contents fall out. Each pack contains 50 bags, making them ideal for use in laboratories, workshops, or DIY projects. These collection bags are versatile and a practical addition to any workplace.