a1 model (from sharpening)(A1款（宝剑锋从磨砺出）) a2 model (knowledgeable and cautious)(A2款（博学慎思）) a3 model (eat the bitterness of life without learning)(A3款（不吃学习的苦就吃生活的苦）) a4 model (don't be lazy if you don't want to lose)(A4款（不想输就别偷懒）) a5 model (zeng guofan six rings)(A5款（曾国藩六戒）) a6 (have read many volumes of books)(A6款（读书破万卷）) a7 model (it's not difficult to give up and stick to cool)(A7款（放弃不难坚持很酷）) a8 (opportunities for those who are prepared)(A8款（机会留给有准备的人）) a9 style (ten family rules)(A9款（家规十条）) a10 model (can be admitted in time)(A10款（来得及考得上）) a11 model (although the road is far away, it will arrive)(A11款（路虽远则行将至）) a12 model (dream will not shine)(A12款（梦想是不会发光的）) a13 (books you can't recite)(A13款（你背不下来的书）) a14 model (why don't you work hard)(A14款（你凭什么不努力）) a15 model (how self-discipline do you have)(A15款（你有多自律）) a16 model (try to catch up with that one)(A16款（努力追上那个）) a17 (diligent)(A17款（勤奋）) a18 (diligent learning and meditation)(A18款（勤学静思）) a19 (encouraging poetry)(A19款（劝学诗）) a20 model (life is like sailing against the current)(A20款（人生如逆水行舟）) a21 model (there is a road to work hard in shushan)(A21款（书山有路勤为径）) a22 model (shushan has a road to work hard for path 1)(A22款（书山有路勤为径1）) a23 model (daily upward)(A23款（天天向上）) a24 model (daily upward 1)(A24款（天天向上1）) a25 model (my direction goes forward)(A25款（吾之所向一往无前）) a26 (for my son)(A26款（写给儿子的话）) a27 (for my daughter)(A27款（写给女儿的话）) a28 (good habit of doing homework)(A28款（写作业的好习惯）) a29 (endless learning)(A29款（学无止境）) a30 (learning)(A30款（学习）) a31 style (hard learning, cool persistence)(A31款（学习很苦坚持很酷）) a32 model (hard learning, cool persistence 1)(A32款（学习很苦坚持很酷1）) a33 model (one effort and one harvest)(A33款（一分耕耘一分收获）) a34 (to yourself)(A34款（致自己）) a35 (self-discipline persistence)(A35款（自律坚持）)

7 inches (inner diameter: 12.7 * cm)(7寸（内径：12.7*17.8cm）) 8 inches (inner diameter: 15.2 * cm)(8寸（内径：15.2*20.3cm）) 10 inches (inner diameter: 20.3 * cm)(10寸（内径：20.3*25.4cm）) a4 (inner diameter: 21 * cm)(A4（内径：21*29.47cm）) a3 (inner diameter: 29.7 * 42cm)(A3（内径：29.7*42cm）)