Spring loaded ball snaps in and out without tools.
# SR-1131, 6 Gauge	1/2", 5/8", 3/4"	$ 5.84 Each
# SR-1132, 4 Gauge	1/2", 5/8", 3/4"	$ 7.00 Each
# SR-1133, 2 Gauge	1/2", 5/8", 3/4"	$ 9.34 Each
# SR-1134, "0" Gauge	5/8", 3/4"	$ 11.67 Each
# SR-1135, "00" Gauge	3/4"	$ 14.00 Each