It is difficult to make a hollow structure in a transparent keycap that fits together and keeps the appearance pure still. We've tried series of procedures using the traceless glue and ultrasonic welding, but both crafts can not make it. After all, we decided to build press-and-fit structure to clear it away. We've been through 16 times mock-up samples to finalize the minimal buckle on the edge of transparent keycap so that buckles up the upper part to lower part.
And then there are coming with the fine-tunning of the keyboard, surface treatment and internal light correction. In terms of material, LOFREE 1% selected premium PC from BAYER as keycap and upper case material. We would like to let customers see keycap through switch, so LOFREE 1% became the First Mass-Produced Transparent Keyboard with Kailh BOX Jellyfish Switches inside.