Upgraded model - silent big wheel + reinforced base - blue stripes

Upgraded model - silent big wheel + reinforced base - red stripes

Upgraded model - silent large wheel + reinforced base - gray d shape

Upgraded model - silent big wheel + reinforced base - purple fish

Flagship model - crystal steel shaft stair climbing wheel + reinforced base - blue stripes

Flagship model - crystal steel shaft stair climbing wheel + reinforced base - red stripes

Flagship model - crystal steel shaft stair climbing wheel + reinforced base - purple fish

Flagship model - crystal steel shaft stair climbing wheel + reinforced base - gray d shape

Upgraded model-abs climbing wheel+reinforced base-blue stripes

Upgraded model-abs climbing wheel+reinforced base-red stripes

Upgraded model-abs climbing wheel + reinforced base-purple fish

Upgraded model - abs climbing wheel + reinforced base - gray d shape

Basic model-silent wheel without base-blue stripes

Basic model-silent wheel without base-red stripe

Basic model - stair climbing wheel without base - blue stripes

Basic model - climbing wheel without base - red stripes

Basic model-climbing wheel without base-purple fish

Basic model - stair climbing wheel without base - gray d shape

Basic model-silent wheel without base-blue

Flagship upgraded model - stainless steel frame + leak-proof base - blue stripes

Flagship upgraded model - stainless steel frame + leak-proof base - red stripes

Supreme model - thickened stainless steel frame - pu wheels + reinforced base - blue stripes

Supreme model - thickened stainless steel frame - pu wheels + reinforced base - red stripes

Supreme model - thickened stainless steel frame - crystal climbing wheel + reinforced base - blue stripes

Supreme model - thickened stainless steel frame - crystal climbing wheel + reinforced base - red stripes