Grimm's Concave finds Convex New Item 2019 — Oskar's Wooden Ark Skip to content
Grimm's Building Set Stairway launch - Monday, 22nd - 9.30 AM Adelaide time
Grimm's Building Set Stairway launch - Monday, 22nd - 9.30 AM

Grimm's Concave finds Convex New Item 2019


The Grimm's Concave finds Convex is a tricky building game in which the matching two parts are to be found. As a tactile variation, put the pieces in a bag and find the matching parts through the sense of touch. The individual parts have interesting and unusual shapes so they are also ideal for outdoor play and imaginative building. 4 parts, L = 6 - 12 cm, H = 2.5 cm, lime wood, non-toxic water based color stain.

Recommended Age 4+ years

Warning! Not suitable for children under 36 months. Choking hazard due to small parts.

Grimm’s Spiel & Holz Design from the Swabian Alp is one of the most outstanding German wooden toy manufacturers. As a family-owned company they develop, manufacture and sell wooden toys since 1978. Grimm’s intend is to design toys, whose simple and reduced design together with beautiful coloring, and inviting surface feel are well suited for all ages - products that are played with over and over again. 

Committed to the pedagogical guidelines of Montessori and Waldorf pedagogy, Grimm’s offer open-ended toys made of sustainable sourced wood for both children and adults. Their natural toys are not only well renowned in Europe and used extensively in many kindergartens and by speech and occupational therapists to improve and extend general didactics, fine motor skills and mathematical reasoning.

Customer Reviews

Based on 4 reviews
We LOVE this!

We love our concave finds convex finds convex puzzle. My almost 2 year old spent so long trying to find the matching piece and was so pleased with herself when she was able to figure it out (initially with a bit of help!). As well as being educational, it’s so beautiful and looks great in our play room! Love love love!

Codey Bromilow
Simple puzzle and much more

I just love how the pieces can be used as a simple puzzle for my toddler or added into our building blocks as extra interesting shapes.

Leah Lynham
Well made, interesting shapes and colours

As always Grimms have delivered a quality toy that’s built to last. The pieces can be used for simple colour matching, as a more complicated puzzle or as blocks in play.

Colour and shape sorting fun

My kids are loving this convex puzzle, not only to use as a puzzle but to colour sort, build and even make houses for the lil friends to go in. Just a great add to our collection