The Grimm's Sloping Blocks is a tricky building set with different tilted blocks. Only the matching colours will complete a rectangle. All 6 blocks within one shade of colour (blue/red/green/yellow and purple) have the same tilt angle and therefore will also complete a rectangle. By building and playing with the uneven blocks, children develop fine motor skills and spatial thinking skills.
The Grimm's Building Set Sloping Blocks comes with 30 building blocks in a wooden frame and is made of lime wood and a non-toxic water based color stain/non-toxic plant based oil finish. The frame has a length of 31cm and the single blocks 6cm thickness.