Select Class: -- select -- SJ19a-Primary - 50cm SPECIAL TWO-PHASE SJ19b-Primary - 50cm AM5 SJ20a-Primary- 60cm SPECIAL TWO-PHASE SJ20b-Primary- 60cm AM5 SJ21a-Primary- 70cm SPECIAL TWO-PHASE SJ21b-Primary- 70cm AM5 SJ22a-Primary- 80cm SPECIAL TWO-PHASE SJ22b-Primary- 80cm AM5 SJ23a-Primary- 90cm SPECIAL TWO-PHASE SJ23b-Primary- 90cm AM5 SJ25a-Secondary- 60 cm SPECIAL TWO-PHASE SJ25b-Secondary- 60 cm AM5 SJ27a-Secondary- 70 cm SPECIAL TWO-PHASE (Article 274.2) SJ27b-Secondary- 70 cm AM5 SJ28a-Secondary- 80 cm SPECIAL TWO-PHASE SJ28b-Secondary- 80 cm AM5 SJ29a-Intermediate Secondary- 90 cm SPECIAL TWO-PHASE SJ29b-Intermediate Secondary- 90 cm AM5 SJ30a-Intermediate Secondary- 100 cm SPECIAL TWO-PHASE SJ30b-Intermediate Secondary- 100 cm AM5 SJ31a-Senior Secondary- 90 cm SPECIAL TWO-PHASE SJ31b-Senior Secondary- 90 cm AM5 SJ32a-Senior Secondary- 100 cm SPECIAL TWO-PHASE SJ32b-Senior Secondary- 100 cm AM5 SJ33a-Secondary- 110cm SPECIAL TWO-PHASE SJ33b-Secondary- 110cm AM5 SJ34a-Secondary- 120cm SPECIAL TWO-PHASE SJ34b-Secondary- 120cm AM5