Manfrotto 492 Micro Ball Head 204920 $59.99
Load: 4.41 lb (2.0 kg)
Spirit Level: No
Height: 2.36" (59.94mm)
Weight: 0.31 lb (0.14 kg)

Manfrotto 494 Mini Ball Head w RC2 QR Plate 204940 $79.99
Built-in Friction Control
Load: 8.82 lbs (4 kg)
Spirit Level: No
Height: 3.35" (8.5 cm)
Weight: 0.71 lbs (0.32 kg)

Manfrotto 496RC2 Compact Ball Head w 200PL-14 Plate 20496RC2 $99.99
Built-in Friction Control
Load: 13.23 lb (6.0 kg) 
Spirit Level: No
Height: 3.94" (100.07mm)
Weight: 0.93 lb (0.42 kg)

498RC2 Midi Ball Head w 200-PL-14 Plate 20498RC2 $136.99
Built-in Friction Control
Load: 17.64 lb (8 kg)
Spirit Level: Yes
Height: 4.92" (124.96mm)
Weight: 1.34 lb (0.61 kg)

Manfrotto 498RC4 Midi Ball Head w 410PL QR Plate 20498RC4 $149.99
Built-in Friction Control
Load: 17.64 lb (8 kg)
Spirit Level: Yes
Height: 5.31" (134.87mm)
Weight: 1.54 lb (.69 kg)

Manfrotto 322RC2 Grip Action Ballhead w RC2    20322RC2 $199.99
Load Capacity 11 lbs (5 kg)
Height 4" (10.3 cm) [in horizontal position]
Quick Release Yes
Spirit Level Yes
Tension Control Yes
Tripod Mount Thread Size 3/8"-16
Weight 1.4 lb (635 g)

Manfrotto 222 Joystick Grip Action w QR 202220
$129.99

Squeeze handle to unlock ball action, position your camera within 180° sphere. Supplied with quick release camera plate with secondary safety lock, built-in bubble level and tension adjustment. Made of cast aluminium. Ideal for 35mm cameras with short or medium focal length lenses.

Max load  5.6 lbs
Head height 8.3 inches
Weight 1.8 lbs