http://www.sibatech.co.jp/abis/tonearm.html

SA-1
* The major key to tonearm quality is the sensitivity and stability in retrieving delicate signals, for which the bearings are the determining factor. The SA-1 employs miniature radial bearings for both horizontal and vertical movement. Very high performance is achieved at a reasonable price.
* The rectangular arm-wand is machined from a solid aluminum block having an advantage in rich and tight bass reproduction, as bass sound is mainly recorded in　 the horizontal plane of the groove.
* Tonearm wires run through separate aluminum tubes inside the arm so that stereo separation is maximized.
* Reproduced sound is precise and clean, thanks to hand assembly by highly skilled craftsmen.
* Comes with detachable headshell, phono cable (RCA output plug, or optionally as XLR), screws, washers, wrench and marking pin.

Specifications
Length: 310mm
Spindle center to arm pivot distance: 212mm
Stylus to pivot distance: 228mm
Overhang: 16mm
Cartridge weight: 15-45 grams, including headshell
Net weight: 745g (with headshell attached: 762g)

TA-1
* The major key to tonearm quality is the sensitivity and stability in retrieving delicate signals, for which the bearings are the determining factor. The TA-1 employs a miniature radial bearing for horizontal movement and a miniature pivot bearing for vertical movement. Very high performance is achieved at a reasonable price.
* The body is constructed from a machine-tooled solid aluminum block.
* The hand-assembled arm wand satisfies every vital condition necessary for vibration-free and noise-free reproduction.
* Reproduced sound is precise and clean, thanks to hand assembly by highly skilled craftsmen.
* Comes with detachable headshell, phono cable (RCA output plug, or optionally as XLR), screws, washers, wrench and marking pin.

Specifications
Length: 305mm
Spindle center to arm pivot distance: 216mm
Stylus to pivot distance: 232mm
Overhang: 16mm
Cartridge weight: 15-29 grams, including headshell
Net weight: 580g (with headshell attached: 597g)