Material :
1. Duct tape
2. Scissors
3. X- acto knife
4. Ruller

Step 1:

First you make as picture and then size not follow me because my size is dependent how much do i enter my brush. i make five slot because i have 5 brush.
roll length could use picture 1 27 centimeters and then width 28 centimeters because my brush length 28 centimeters you should add more distance so as not to look at the time in a roll brush.

Step 2:

you make as picture this. outboard half and outboard half.. until your distance fulfilled your size.

Step 3:

after so as figure 1 you must trim edge as figure 2. and then you make 2 as figure 3 for cover or hold your brush not fall

Step 4:

you make a square wide and take a big square and a small outboard with double sided tape according to the distance you brush off all the double sided tape and can be attached to a small square and press until it is sticky