lion s head pen holder with a smooth surface and decorative

Spring scale – made from safe material and carefully crafted, this spring scale is durable.
Hanging tubular spring scale – robust stainless steel spring and hook, very strong and rust-resistant, does not deform or break easily, cylindrical spring scale.
Easy-to-read spring scales – ideal for teaching and practical applications for weight measurement, for exploring the physics of force and mass, providing you with good service, tension balance.
Spring scales – with clear calibration and transparent cylindrical design, easy-to-read markings, ideal for physics demonstrations and experiments, portable spring scale.
Spring scales for scientific use – the transparent housing allows observation of the extension and contraction of the spring, spring scale for physics laboratories.