A gymnastics matt.
You should be able to find pictures of heavy and light gymnastics apparatuses on a gymnastics website or on Google pictures.
to light thiubngs
What are the difference heavy apparatusand light apparatus
Because its more stable and the heavier it is, the more chance it won't move, If it was light it would just topple over where as being heavy the weight can hold and make sure its stable enough to tumble and do gymnastics on.
There are many apparatuses in gymnastics. Some of these include the balance beam, the uneven bars, the rings, as well as the vault.
* Uneven and parallel bars * balance beam * vault * floor exercise * rings * trampoline
Gymnastics is a very hard sport that includes tumbling and apparatus
These are wands, hoops, ball, ring, and many more