Bouwpakketten en experimenteerkits

4.6 cm 4.8 cm 4.13 cm 5 cm 5.2 cm 5.4 cm 5.8 cm 6 cm 6.2 cm 7.3 cm 7.5 cm 7.6 cm 7.8 cm 8 cm 8.7 cm 9 cm 9.1 cm 11 cm 14 cm 15 mm 15.8 cm 17 cm 17 mm 18.5 mm 21 mm 23 mm 24 mm 25 mm 26 mm 27 mm 29 mm 30 mm 31 mm 32 mm 33 mm 34 mm 35 mm 36 mm 40 mm 44 mm 45 mm 50 mm 51 mm 53 mm 54 mm 55 mm 56 mm 56.5 mm 57 mm 60 mm 65 mm 66 mm 67 mm 68 mm 68.6 mm 69 mm 70 mm 74 mm 75 mm 77 mm 79 mm 80 mm 83 mm 85 mm 87 mm 90 mm 98 mm 100 mm 137 mm 140 mm 143 mm 150 mm 168 mm 320 mm