You asked, now Aspire Tigon extended pyrex glass tube is coming TPD version:3.5ml(only for TPD version) https://online.aspirecig.com/aspire-tigon-extended-pyrex-glass-tube-35ml-tpd-version-p-351.html Standard version:5ml(only for standard version) https://online.aspirecig.com/aspire-tigon-extended-pyrex-glass-tube-5ml-standard-version-p-352.html