Playground Rubber Mulch Safety Outdoor Mats
They are playground mats providing a protective flooring for children. Green and red are common colors used. This mulch are durable as outdoor tiles.

The SBSAR file lets you change the colors of the checkers and define the offset random.

 
Playground Rubber Mulch Safety Surfacing Tiles
These protective tiles can easily be found in playgrounds. They are used as safety surfacing. Black and red checker pattern is one of the popular combinations.

The Substance 3D designer file gives you the freedom to change the colors of the tiles and set the offset random of the tiles.
Rubber Mulch Mats / Tiles for Playground Safety
This is a rubber mulch mat that can easily be found is many playground for safety. It is a material having a lot of pores, but it can absorb vibration that makes it a good substance for protecting children in playing field.

If you want to texture a playground, please don't miss this PBR texture.