◆ We offer various sizes of small glass test tubes (disposable test tubes/Durham tubes). Please be careful not to make a mistake. ◇ Small glass test tubes/rimless (10 pieces). ◇ Approximately 13mm in diameter (approximately 11mm inner diameter) x approximately 100mm in length. ◇ We are selling a portion of a large quantity of products. ◇ Please use them for handmade crafts and DIY materials. ◇ Please feel free to consult with us if you have any requests, such as combining with other products. ◇ The price of the product is 60 yen per piece. For 10 or more pieces of the same size, we will include one spare. ◇ Shipping costs are as follows: 1-5 pieces → 140 yen (regular mail), 6-10 pieces → 180 yen (Yu-Packet Post mini), 11-31 pieces → 210 yen (Nekopos), 32 or more pieces → 520 yen (Takkyubin Compact). ◆ The price of the product on this page is 600 yen + Yu-Packet Post mini 180 yen. ◆ We do not accept price negotiations.