cylindrical is part of:
80% round
64% circular (indirectly)
cylindrical contains:
90% half-cylindrical
50% round
45% disc (indirectly)
20% hub (indirectly)
20% tire (indirectly)
Full expansion for cylindrical:
100% Cylindrical Technic Piston Head
100% 1x1 Cylinder Brick
100% 1x1 PRIMO Cylinder Brick w/ Bee
100% 1x1 PRIMO Cylinder Brick w/ Flowers
100% 1x1 PRIMO Cylinder Brick w/ Frog
100% 1x1 PRIMO Cylinder Brick w/ Ladybug
100% 1x1 PRIMO Cylinder Brick w/ Penguin
100% 1x1 PRIMO Cylinder Brick w/ Polar-Bear
100% 1x1 PRIMO Cylinder Brick w/ Smile
100% 1x1x2 Cylinder Brick
100% 2L Cylinder w/ Dual End Peg Holes
100% 2x2 Cyl.Brick w/ BlackBox, 2x4 Gray Dots
100% 2x2 Cylinder Brick
100% 4x4x2 Cylinder Hub w/ 6 Peg Holes
90% Large Tiny-Peg Hub
90% Large Tiny-Peg Hub w/ Treaded Tires
90% Small Tiny-Peg Hub
90% Small Tiny-Peg Hub w/ Treaded Tires
90% Small Tiny-Peg Hub w/ WideFlat Tires
90% 2x2 FreeStyle Hub w/ Large Tires
90% 2x2 FreeStyle Hub w/ Small Tires
90% 2x2 Spoked Hub w/ Treaded Tires
90% 2x2 Studded Hub w/ Metal Peg
90% 2x2 Studded Hub w/ Peg Hole
90% 2x2 Technic Cross-Axle Hub
90% 2x2 Technic Cross-Axle Hub w/Lg.Tires
90% 2x2 Technic Cross-Axle Hub w/Sm.Tires
90% 2x4x4 Half-Cylinder
90% 4x4x1 Cylinder Brick w/ 4 Peg Holes
85% Small Tiny-Peg Hub w/ Thin Tires
80% 1x1x.5 Technic Pulley w/ Toothing
80% 1x1x.5 Toothless Technic Pulley
80% 2x2 Elbow-Bend Cylinder
80% 2x2x11 Cylinder Brick w/ Sq. Base
80% 3x3 Technic Pulley w/ Tires
80% 4x4x1.3 Grooved Hub w/ 7 Peg Holes
80% 4x4x1.6 Grooved Hub w/ 7 Peg Holes
75% 2x2x2 Cylinder Brick w/ 4 Fins
70% 1x1x1 Cylinder Brick w/ 4 Fins
60% 2x2x1.6 Bell-Jar
60% 2x2x2 Barrel w/ Lid
60% 2x2x2 Lidless Barrel
60% 4x4x3.5 Lidless Barrel
50% Rubber Belt from 1782
50% Rubber Belt from 1822
50% Rubber Belt from 5561
50% Rubber Belt from 5988
50% Rubber Belt from 8213
50% Rubber Belt from 8226
50% Rubber Belt from 8232
50% Technic Rubber Belt
50% 1x1 Round Plate
50% 1x1x4 Round Antenna
50% 1x1x8 Super-Tall Antenna
50% 2x2 Disc w/ Convex Round Bottom
50% 2x2 Quarter-Circle Brick
50% 2x2 Radar Dish
50% 2x2 Round Plate
50% 2x2 Round Plate / Barrel Lid
50% 2x2 Round Tile
50% 2x2 Round Tile w/ Analog Clock
50% 2x2 Round Tile w/ Criss-Cross Lines
50% 2x2 Round Tile w/ Pizza
50% 2x2 Round Tile w/ Submarine
50% 2x2 Round Tile w/ Zebra Skin
50% 2x2x2 Round Space Landing Pad
50% 2x2x2 Trash Can w/ Lid
50% 2x2x2 Trash Can, No Lid
50% 4x4 Brick Turntable
50% 4x4 Radar Dish
50% 4x4 Swirl-Pattern Radar Dish
50% 4x4 Umbrella/Radar Dish
50% 6x6 Webbed Radar Dish
50% 8x8 Radar Dish
50% 8x8 Round Tile w/ 4 Center Studs
48% 1x1 Coin w/ Sprue (0 sets)
48% 3x3 Technic Pulley
45% 3x3 Technic Wheel Hub/Tri-Pulley
45% 3x3 Thin-Disc w/ Center Axle-Hole
40% 1.5x1.5 12-Tooth Technic Bevel Gear
40% 1.5x1.5 Micro-Motor-Style Pulley
40% 1x1 8-Tooth Technic Gear
40% 1x1x.6 Rounded Light Cap
40% 2x2 16-Tooth Technic Gear
40% 3x3 24-Tooth Technic Crown Gear
40% 3x3 24-Tooth Technic Gear
40% 4x4 40-Tooth Technic Gear
40% 4x4 Dome-Backing Disc w/ 1x2 Plate
40% 4x4x1.6 Hex-Pattern Dome
35% 2x2 Round Plate w/ Bottom Pulley
35% 2x2 Round Plate w/ Cart-Wheels
30% Laser-Gun, Cyl. Nozzle
30% 2x2x4 Cone/Cylinder Jet Engine Shell
25% Hand-Held Round Paddle
25% 2x2 Round Tile w/ Top Hook Hole
25% 2x2x2 Spherical Crystal Ball
25% 4x4 Round Tree Stump
25% 6x6 Octagonal Umbrella
20% "30.4x14 VR" Tire, no hubs
20% Large Tire for 2x2 Hub
20% Large Treaded Tiny-Peg Tire
20% Small Smooth Tires from 6444, no hubs
20% Small Tire for 2x2 Hub
20% Small Treaded Tiny-Peg Tire
20% 12x12 Quarter-Disc Brick
20% 2x4 Brick w/ Red 2x2-Stud End Hubs
20% 3x3 Rubber Tire for Technic Pulley
20% 4x4 Quarter-Disc Brick
16% 2x2 Plate w/ Metal Axle & Lg Tires
16% 2x2 Plate w/ Metal Axle & Sm Tires
16% 2x2 Plate w/ Tiny Gray Wheels
16% 3x3 Technic Hub w/ "30.4x14 VR" Tire
16% 3x3x2 10+10-Tooth Tank-Tread Hub
16% 4x4 Technic Hub w/ "13x24" Tire
16% 4x4 Technic Hub w/ "43.2x28 S" Tire
16% 4x7 Car Chassis w/ Tires & Hubs
16% 5x5 Technic Hub w/ "20x30" Tire
16% 5x5 Technic Hub w/ "49.6x28 VR" Tire
16% 5x5 Technic Hub w/ "68.8x40 Q" Tire
10% 1x1 Cyl. Brick w/ 5-Stripe LEGO Flag
10% 1x1 Cyl. Brick w/ Pole & Plain Flag
10% 2x2 Cylinder Brick w/ 6 Fan Blades
5% 12x24 Sunken Dual-Quarter-Disc Brick
5% 1x1 Spigot
5% 24x24 Brick Minus Quarter-Disc
2% 3x4x3 Sloped Wall w/ Round Window