Color: White I'm sharing some as I don't use much. This is professional-grade thread. It's a very strong thread actually used in shops for restringing pearls. You generally use about four times the length of the necklace for a 40cm pearl restringing. There's also the possibility of mistakes, so 20m might feel a bit insufficient, which is why I'm selling it in 30m lengths. I think it's a convenient amount, but you can also purchase additional thread at +40 yen per meter. It will be hand-wound onto cardboard and shipped as shown in the third photo. If you don't mind the way it's wound, how about this affordable option? Shipped via Yu-Packet. Thank you for looking.