A bumped variant of the mass produced 4x4x5 cuboid.

• Inventor: Ilya Toporgilka
• Mechanism: LxMxN (other)
• Patents: Unknown
• Producer: Custom
• Year: 2021
• Original Price: $0.00 USD
• Current Price: No Data

It is not the first bumped 4x4x5 but the first one done with these dimensions:
7,5 : 15 : 15 : 15 : 23
10 : 15 : 15 : 20
13 : 15 : 15 : 17
Since the 4x4x5 has fragile Eastsheen parts, Ilya Toporgilka only gave "light and hollow" extensions from plastic sheets. A few of his 2x2x2s, 4x4x4s and 5x5x5s broke. He planned to redo a Bump 4x4x5 with better (but heavier) extensions when the 4x4x5 with V-cube mechanism went into mass production.

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