Multiple Sockets for Versatility: you get 2 acrylic tube holders; And this tube holder features 12 sockets, providing ample space to accommodate multiple 10ml test tubes; It allows you to conveniently organize and store samples, making it suitable for a wide range of laboratory applications Proper Size for Easy Handling: with dimensions of about 26.5 x 9 x 4.6cm, this test tube holder rack is designed to offer a comfortable grip and easy maneuverability; The compact size ensures effortless handling during experiments or lab work, enhancing overall efficiency; And each socket of the rack is about 0.63 inch/16 mm in diameter, and fits for 10ml test tube Reliable Acrylic Construction: constructed from quality acrylic, this test tube holder is built to be and sturdy; It ensures the safety of your test tubes by providing a stable and secure holding solution; The reliable acrylic material also minimizes the risk of accidental breakage; What's more, it features a clear and high transparency,