The 3D Printed Silicone Smoothing Sticks by Sticks are a set of five reusable hand tools designed for DIY sealing projects. Made from black plastic in the United Kingdom, these smoother sticks are perfect for smoothing out sealant and silicone around windows, doors, and sinks. With their innovative design and high-quality material, these sticks provide a convenient and efficient solution for achieving professional-looking results in your DIY projects.