Hexagonal dumbbell series: specifications from 1-70kg and 2-150lb full series, lagging materials are PVC, TPE, TPR, TPU and other black and color, can be odorless and environmentally friendly materials, the surface of the lagging material can be printed and water transfer, material certification includes SGS, RoHS, etc., the handle diameter is 27-35mm five specifications, the surface treatment has electroplating decorative chrome and hard chrome, can also do PVD treatment