In the past 3-5 years, rattan gray (grey) kubu (kobo or koboo) is also the most selling baskets around the world.
How to make rattan gray(grey)
Gray kobo is made by natural kobo ( white koboo). The raw material sinked into the pool or swamp with full of mud cover the whole rattan. After 1-2 weeks, we take the raw material and dry it in the sun for at least 1-2 days. The gray color will appear naturally. 
Sometimes, other suppliers using chemical material to make gray color, but for SeloAgro we process it naturally.
Rattan gray usually found in furniture, planter, flowers pots, fruits (apple or potatoes) in farmers fields, log baskets etc. The gray rattan looks like an antique stuff, some customers used it for decorative purpose.
For more information, click this link www.seloagro.com