Velcro cards help your students practise short answers. The set consists of 40 question cards and 40 answer cards. The cards need to be printed and laminated. You'll also need small velco dots to stick onto the cards. The error control card is much small than in the previus cards and needs to stuck to the question card using sellotape. The instruction on how to assemble the cards is in the material. 
 
Read more about the cards here: https://www.montenglish.com/single-post/2017/11/01/Short-answers-with-the-verb-to-be