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size 18 [11.6cm/can be cut]] size 19 [12.2cm/can be cut]] size 20 [13cm/can be cut]] size 21 [13.6cm/can be cut]] size 22 [14.4cm/can be cut]] size 23 [15cm/can be cut]] size 24 [15.6cm/can be cut]] size 25 [16.4cm/can be cut]] size 26 [17cm/can be cut]] size 27 [17.5cm/can be cut]] size 28 [18.1cm/can be cut]] size 29 [19cm/can be cut]] size 30 [19.4cm/can be cut]] size 31 [20.1cm/can be cut]] size 32 [21cm/can be cut]] size 33 [21.4cm/can be cut]] size 34 [22cm/can be cut]] size 35 [22.7cm/can be cut]] size 36 [23.3cm/can be cut]] size 37 [24cm/can be cut]] size 38 [25cm/can be cut]] size 39 [25.5cm/can be cut]] size 40 [26cm/can be cut]] size 41 [26.5cm/can be cut]] size 42 [27cm/can be cut]] size 43 [27.5cm/can be cut]] size 44 [28cm/can be cut]] size 45 [28.5cm/can be cut]]