Transparent Acrylic keychains have a lot of unique techniques over opaque rubber ones. All sizes and techniques can be customed.4 Kinds Of Transparent Acrylic keychains have a lot of unique techniques over opaque rubber ones. All sizes and techniques can be customed. 4 Kinds Of Technique For Producing Acrylic Keychain. ( A: Single acrylic board +single side epoxy+single side printing; B: Double acrylic board+single/double-sided printing; C: Double acrylic board+single/double-sided printing; D: Double acrylic board+double side epoxy+double side printing.)kinds of the accessory are available. About 6cm height, The Shapes, logo, and size all can customize.