Patent ID: 11904199
Assignee: nan
Field: Furniture, games (Other fields)
Classification: CPC A | IPC A

Claim 0:
1. An exercise device comprising:
a first side having a convex surface;
a second side opposing the first side, the second side having a surface;
a first rounded end having a first radius;
a second rounded end having a second radius;
a first arc of the first rounded end defined by the first radius;
a second arc of the second rounded end defined by the second radius;
the convex surface of the first side having an arc defined by a third radius;
wherein the first side has a first end and a second end and the first side first end is connected to the first arc and the first side second end is connected to the second arc;
wherein the second side has a first end and a second end and the second side first end is connected to the first arc and the second side second end is connected to the second arc;
wherein the first radius is larger than the second radius;
wherein the third radius of the first side convex surface is greater than the first radius and the second radius;
wherein the second side surface comprises a concave surface; and
wherein the first radius of the first rounded end is 11% to 14% larger than a radius of the concave surface.