TAKE IT- slip signs / slip signs

In public places ,people often slip because of the slipped floor. We all know that the traditional measure is to place an in dicator which reminds them to be careful. However, this measure can only remind them ,the dangerous problem-slipped floor,still exists.
To solve the public problem,"slipped floor", the new indicator for preventing slipping has added a box which has some mats,After bending the box back ,people can choose mats which are suitable to their shoes,inceasing the force of friction between shoes and floor and reducin the embarrassing situation that people slip.