Spherigear LoopEight spherical gears of which four are turned at any time in conjunction. The very rare case of an abelian twistypuzzle.
SpherigearsA combination of a mechanical maze and Bramboules.
Spider GearA spider-shaped cage containing bi-colored gears and a central rotating ball.
Spin-OutTry and remove the inner sliding mechanism, blocked by knobs you can only turn one at a time.
Swap CubeFive differently colored 2x2x2 embedded in a strange mechanism which allows one to exchange the cubies between the individual cubes.
The BrainThe object of this puzzle is to get all the sliders either in or out. Several stacked and slotted disks inside the puzzle limit the range of movement at each step.
The XFive parallel disks must be rotated correctly to make the egg stand upright. There is also a version named "Columbus' EGG".
Tracker BallOne icosahedron and three octahedra rotate against each other in a single puzzle.
Tracker Ball 3DFive rotating balls in a cage that forces all five to rotate together.
TumblerGently roll to get small beads to their own arms. In other words: Match the color of the beads to color of arms.
Twisted DaisyEleven rotatable and flippable petals. Which petals are flippable they can be reconfigurated.
Uni-66 knobs that must be pushed inwards. But pushing one knob inward might let throw others outwards.
Unknown Rolling CubesEight cubes (four inverted) in a plastic cage. Four of them rotating in conjunction.
Writer's BlockA puzzle consisting out of 7 pens which all have to be pressed to solve the puzzle and open the box.