with clear instructions included
a stand for stable positioning
ensuring high-quality performance in various industrial and laboratory applications
Premium Quality: Spiral Spring is made of high-grade construction all the way through
Metal Cylinder Set with clear instructions includedMetal Cylinder Set B. Cylinder Set of 3 Kinds Metal, size Dia2x3cm, including Copper, Steel, Aluminum, Brass. C. Cylinder Set of 4 Kinds Metal, size Dia1x5cm, with knob, including Copper, Steel, Aluminum, Brass. D. Cylinder Set of 4 Kinds Metal, size Dia2x4cm, with knob, including Copper, Aluminum, Zinc, Iron. E. Cylinder Set of 5 Kinds Materials, weight 19g including Polyethylene, Polyvinyl Chloride aluminum, Nylon, Aluminum, Brass. All the Cylinders