01DOOR HARDWARE
Learning through tactile size distinction
A quiet educational tool for the nursery shelf or play mat, this puzzle invites young minds to explore the physical world through touch. The distinct knobs encourage active engagement rather than passive observation.
Designed for early learners, it helps children differentiate between narrow and wide forms while developing fine motor skills. It suits toddlers who are ready to grasp abstract concepts through concrete objects.
This puzzle is great for young age to learn about sizes and hand-eye coordination. The toy features chunky pieces, the colors go lighter with the size, which helps children figure out the difference of the size.
1 x Narrow-wide knob puzzle

DESIGN
Colour cues guide size recognition
The puzzle uses a deliberate visual strategy where the colours transition from darker to lighter tones as the piece size changes. This gradient provides an intuitive visual anchor for children learning to compare dimensions. The design relies on clear differentiation so that the correct slot is obvious once the child understands the size relationship.
FUNCTION
Chunky grips for developing fingers
Each piece features a substantial knob, sized specifically for small, uncoordinated hands to grasp securely. This ergonomic detail reduces frustration during play, allowing the child to focus on the cognitive task of matching rather than struggling with the grip. The tactile nature of the knobs encourages repeated handling and sensory exploration.
DETAILS
Simple contents and compact packaging
The set includes a single Narrow-Wide Knob Puzzle unit, sufficient for focused individual play. The product arrives in a 30 x 30 x 30 cm carton weighing 2 kg, making it easy to store or gift without taking up excessive space. The packaging protects the individual pieces while keeping the overall footprint manageable for home storage.
AT A GLANCE
The key points
- Chunky knob pieces designed for small hands
- Colour gradient shifts lighter as size increases
- Supports early concepts of narrow versus wide
- Includes one complete puzzle set
- Packaged in a 30 x 30 x 30 cm carton











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