Patented under the following numbers: 5,676,243, D302,280
4,976,124- 4,658,479- 4,612,685- .
with others pending
©1985-2019 C.E. Sanders
Calslock™ mfg.
Keaau Hawaii 1985 Thumbsquare Logo
Thumbsquare™

FL , Hawaii , CA



This page under Construction:

Company Information
Calslock™ & Thumbsquare™
Began from my shop in Hawaii
1982-85 Redesigned 2011-14 -19
Locksmith and manufacturer of
Calslock Portable Door Lock,
Locksmith Tools, Keyholders
Thumbsquare Money Clips,
Desk Organizers, and high profile engravable gifts

Available at: Amazon - Ebay - Etsy - Corporate Travel Safety - Calslock Online - Sears

Calslock™ Portable Door Lock
 Calslock portable Door Lock in use
Instructions: Open door - Insert hook on notched bar into door strike plate.
Close door, Squeeze, & slide lock snug against door
 Calslock solid brass

For added security
or doors opening out
Slide on Key Locking Device
(includes 2 keys)
Calslock with keylocking device

 Calslock in use & pkgd  Calslock with Key Locking Device Notched bar is hammered Hot rolled steel. Squeeze Slide is 16ga. Solid Brass. Size is 5Lx1W".
Keyed Lock is steel & brass and chrome plated Includes 2 keys. Shown in use and packaged



Calslock with Key Lock $49.95

Thumbsquare™ Solid 10K
Rose Gold Money Clip

 Thumbsquare 10k solid gold money clip
Patented, Made USA: Handcrafted Solid 10K Rose Gold. Weighs 8.5 dwt.
Size is 2Lx1Wx.095D" Packaged Gold foil jewlery box
 Thumbsquare 10k solid rose gold money clip in use
$495.50 ..10K Rose Gold Money Clip


Thumbsquare Solid
Brass Keyholder
Thumbsquare Logo
Patented, Made USA:
Holding Keyholder - Place thumb on square & press to add or remove keys (Holds 8 keys and car remote) Size is 2Lx2Wx0.125D". Weighs 0.75 dwt
 Thumbsquare solid brassd Keyholder
Packaged Black foil jewlery box
Solid Spring Brass... $24.95
Thumbsquare™
Sterling Silver KeyholderThumbsquare Logo

Holding Keyholder - Place thumb on square & press to add or remove keys (Holds 8 keys and
car remote) Size is 2Lx2Wx0.125D".
.925 Sterling Silver - 0.75 dwt
Thumbsquare Sterling Silver Keyholder
Packaged Black foil jewlery box .
Black foil jewelry box for Thumbsquare keyholder



Thumbsquare Sterling Silver Keyholder - $49.95







Thumbsquare Solid Brass Keyholder Thumbsquare
Solid Brass Keyholder




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