HW-1AA -- AA battery holder (single) -- US$1.59

Single AA battery (1.5V) holder.
HW-4AAA -- AAA battery holder (four) -- US$1.95

4 pcs AAA battery (6V) holder.
HW-2AA -- AA battery holder (Two) -- US$2.50

2 pcs AA battery (3V) holder with power on/off switch and case.
HW-3AA -- AA battery holder (Three) -- US$3.00

3 pcs AA battery (4.5V) holder with power on/off switch and case.
HW-4AA-A -- AA battery holder (Four) -- US$3.00

4 pcs AA battery (6V) holder with removable case.
HW-4AA-B -- AA battery holder (Four) -- US$3.50

4 pcs AA battery (6V) holder with power on/off switch and case.
HW-8AA-1 -- AA battery holder (Eight) -- US$3.00
 
8 pcs AA battery (12V) holder.
HW-8AA-2 -- AA battery holder (Eight) -- US$3.95

8 pcs AA battery (12V) holder with on/off switch.
HW-9V-- 9V battery clip -- US$2.00

9V battery clip.
HW-4-Breadboard -- US$2.85
]
4-point connections breadboard. It can be screwed in a fixed location. Great for BEAM robots. Length x Width : 3cm x 1cm
HW-6-Breadboard -- US$3.25

6-point connections breadboard. It can be screwed in a fixed location. Great for BEAM robots. Length x Width : 5cm x 1cm
HW-10-Breadboard -- US$4.25

10-point connections breadboard. It can be screwed in a fixed location. Great for BEAM robots. Length x Width : 5.4cm x 2.5cm
HW-20-Breadboard -- US$4.95

20-point connections breadboard. It can be screwed in a fixed location. Great for BEAM robots. Length x Width : 9.3cm x 2.5cm
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