4 pairs of stairs

 

 Handrails are made of steel,while steps are in wood,the two beams at the bottom supporting the  stairs are made by strong concrete.

 

This design ,inspired by sea shells, spirals up as people climb up.The armrest on both sides are in concrete while the steps are made by fine wood.

 

 This snake shaped stair are made by fine wood with handrail on one side made by steel.The thin beam at the bottom supporting them are made by strong concrete.

 

Except for the armrest made by two layered glasses,the steps are made by pure white strong concrete ,creating a sense of purity and neatness.