What ages? 

As a mother of two children, who spent plenty of time on crafts, I wanted to create a product that would be appropriate for a wide range of ages. I realized that the way to engage young children with limited motor skills would be to allow them to participate according to their own capacities. - by which I mean the process of pulling the strings apart. This is a wonderful and fun opportunity for young children to feel that they succeed in their task. As with all crafts (knitting, embroidery, fimo etc.), the beginning is difficult and requires patience, but once the hands “get it”, the experience is very fruitful.

How to find out the size of the finished item?

Sometimes, it is important to know beforehand how many details are needed for creation of specific item. In order to answer this question it is necessary to measure sizes of the detail’s internal part.

For example, we decided to create case for IPAD. It's size is 9.4 inch (24 cm) x 7 inch (18 cm). These numbers should be divided into 1.6 inch (4 cm) in case of using small squares and into 4.2 inch (10.6 cm) if you use big details. We get 6 squares in width and 5 squares in length (assuming that we use small pieces). Now we multiply 6 by 5. It means that we need 30 pieces for one side of item and the same quantity for other. As a result, the total quantity of details needed for creating of IPAD case is 60.

How strong are modular items created with PUT&PULL technique?

All craft kits are made out of thick and quite tough 100% polyester felt. This material was chosen not by accident.

It is important to remember that during crafting process there is a risk that details maybe deformed or the edges may be tousled. Synthetic felt is melting during laser cutting thus reinforcing the edges of the slots. That is why all PUT&PULL items from the craft kits are strong enough and can be used for specific purpose.

However, if you create only one row of square details and use it as a handle for the bag, there is a great possibility that it will tear. It all depends on the form of item and its usage. Here is an experiment that I have done... You can see what burden amount the weakest part of the item can withstand.