Mk1 Yoyos has released at least a couple yoyo designs. Here they are.
Exia
An inner-ring bimetal with a cool shape.
Releasing November 6th, 2020.
160 units (40 pink-blue fade with raw rings, 40 black with rainbow rings, 40 green-green fade, with gold or raw rings, 40 clear, with gold or rainbow rings)
7 prototypes (pink-blue fade with raw rings)
Width: 47.3mm
Diameter: 55.6mm
Weight: 63.7g
Axle: 10mm
Material: 7068 Al and Stainless Steel
Converge
A collaboration between Mk1 Yoyos and OPYOYOS.
Released July 24th, 2020.
125 numbered units (31 purple with gold rims, 31 pink with rainbow rims, 16 blue fade with black rims, 16 red fade with black rims, 31 black with black rims)
4 prototypes (raw with rainbow rims)
Plus additional team editions
Width: 46mm
Diameter: 58mm
Weight: 62.2g
Gap: 4.6mm
Axle: 8mm
Material: 7068 Al and Stainless Steel
Umbra
An ultra-wide and light-weight yoyo.
Released January 17th, 2020
100 units (50 pink fade, 50 blue fade)
5 prototypes (raw)
Width: 55mm
Diameter: 55mm
Weight: 61.2g
Gap: 4.5mm
Axle: 10mm
Material: 7068 Al
Diffraction v2
A polished version of the Diffraction.
Released July 12th, 2019
61 units (3 raw, 20 green fade, 19 pink fade, 19 blue fade)
Width: 46mm
Diameter: 56mm
Weight: 64.5g
Gap: 4.6mm
Axle: 8mm
Material: 7075 Al
Diffraction v1
An exciting new project, combining aspects of my favorite yoyos with an interesting fingerspin cup.
Released October 29th, 2018
11 units (1 raw, 10 blasted and anodized pink/blue)
Width: 46mm
Diameter: 56mm
Weight: 64.5g
Gap: 4.6mm
Axle: 8mm
Material: 7075 Al