Skia Sweet Spot Ski Trainer

We helped Start-up Company SkiA develop their launch product from an initial idea for a “dry-land” based ski training aid to a production reality.


The trainers fit onto all sizes of ski boot and help users learn essential balance skills that improve turning efficiency and develop better skiing technique. They include a series of different sized balance blocks that provide increasingly difficult challenges to teach perfect posture, promote dynamic movement and guide centred pivoting.


The Foot Plate component design cleverly combines a rigid platform with flexible sections that adjust to the shape of any boot.


We developed the design from initial concepts, through test rigs and fully detailed 3D CAD models to working SLS prototypes for extensive performance testing. We designed the product packaging and sourced, supplied and managed manufacture of the production tooling and finished boxed products from our network of Far East partners.


"Design 4 Plastics have been absolutely integral to the development of our first product. Quite simply, the SkiA Sweetspot Trainer would not have happened without them"

SkiA Company Founder.

Easyline Edge Line Marking System

Starting with an open brief to develop a replacement for ITW ROCOL’s aerosol spray line applicator we came up with an innovative, patented solution that offers many advantages over anything else on the market.

Easyline Edge can produce 50, 75 or 100mm wide lines from a single aerosol can thanks to our clever spray nozzle design and easily variable applicator geometry. The lines produced are kept clean and crisp with replaceable spray masks and a battery powered airflow system that directs paint over-spray back within the line. The handle adjusts to suit the user and the rear legs can be folded in to allow marking close to walls and racking.

We developed the design from concepts, through test rigs, fully detailed 3D CAD models, rapid prototypes and development injection mould tools to fine tune the spray nozzle. We managed manufacture of all the injection mould tools and product assembly for the initial production batches.

“The team at Design 4 have helped us create the market leading product in Line Marking, massively increasing our sales”

ROCOL site safety  product manager.

Design 4 Plastics 2017