Giddings&Websterは、マウスピースの素材ににステンレス（チタン）を
使用していることで有名なマウスピースです。
トランペット、フレンチホルン、トロンボーン、ユーフォニアム、チューバの
マウスピースを製造されていますが、Ivan Giddingsさんがチューバ奏者であった
こともありチューバのラインナップは特に豊富です。
また、真鍮より３倍硬く医療・食品産業でも使われているステンレスを
素材に使うことでメーカーでは下記の利点があると説明しています。
楽器への反応が早くなる
"Faster response!"
大音量や小さな音量での演奏、高・低音域での演奏が容易になる
"Plays the extremes (loud, quiet, high, and low) with ease"
持久力が向上する
Improves endurance
人体に安全な素材（ステンレス）を使っているため、メッキなどで
表面の皮膜加工を行っていない。また、メッキ加工を行っていないので
メッキが剥がれることを心配をすることが無く、いつまでも使うことが出来る。
"Naked mouthpieces have no plating to wear through,
meaning they will last forever"
亜鉛やニッケルなどの人体に危険な材料を使っていない。
"No dangerous chemicals"
"No zinc exposure"
"No Nickel exposure"
各楽器のマウスピースは、次のモデルがラインナップされています。
Tuba mouthpiece
Kronos
copy of the smaller of the original Helleberg mouthpieces
1.260 inches at the rim diameter and the back bore is only .295 inch.
Bayamo
similar to a PT-88 rim diameter, with a deeper funnel cup and larger throat
Rim Diameter 33.528mm Throat size 8.433mm
Caver
designed as a solo counterpart to the Bayamo
Rim Diameter 33.528mm Throat size 8.128mm
Taku
fills the gap between the Bayamo and the Williwaw
Rim Diameter 32.512mm Throat size 8.255mm
Williwaw
designed like a larger Helleberg with a deep funnel cup
Rim Diameter 32.512mm Throat size 8.255mm
Diablo
the solo counter-part to the Williwaw
Rim Diameter 32.512mm Throat size 8.077mm
Matanuska
large F/Eb tuba mouthpiece, and the smallest CC/BBb tuba mouthpiece available
Rim Diameter 31.877mm Throat size 8.077mm
Bora
medium size F/Eb tuba mouthpiece
Rim Diameter 31.877mm Throat size 8.077mm
Churada
smallest of our F/Eb mouthpieces designed for solo playing
Rim Diameter 30.480mm Throat size 7.874mm
Alan Baer Original CC
Rim Diameter 32.91mm Throat size 8.16mm
Alan Baer Original F
Rim Diameter 32.90mm Throat size 7.49mm
Alan Baer MMVI CC
Rim Diameter 32.91mm Throat size 8.16mm
Alan Baer MMVI F
Alan Baer MMVI F - Solo
Alan Baer MMX F-Solo
John Sass
Rim Diameter 32.91mm Throat size 7.976mm
Tenor Trombone mouthpiece
Sonny Ausman
Rim Diameter 25.502mm 1.004 inches Throat size 6.706mm, .264 inches
SA-100
narrow rim similar to the Euros but with the same cup.
The throat is .015 larger.
NB 100
based on a 6 ? Al size cup with a slightly larger inner rim byte
NB-101
rim diameter of 1.01.
NB-102
rim diameter of 1.02.
GW-100
GW-100 has a Carbonaria rim of 1.000 and a cup similar to our Kadja,
but .035 shallower.
GW-101
GW-102
GW-103
Euros
With a slightly larger throat than a traditional Bach 5G
Rim is 1.008 and the throat is .282 in diameter, deep bowl shape cup
Boreas
Similar in size to a Bach 5G
as well however with an even more open back bore and throat.
Rim is 1.008 and the throat is .283 in diameter, deep funnel shape cup.
TZ 103
Kadja
E-1
similar to a Bach 4G
Rim is 1.035 and the throat is .272 in diameter, funnel shape cup
EXL
E-2
similar to a Bach 2G
Rim is 1.060 and the throat is .281 in diameter, funnel shape cup
Carbonaria
Bass Trombone mouthpiece
Bob Sanders
Don Harwood
Medium deep cup similar to a Schilke 60
Rim Diameter 28.956mm, 1.139 inches Throat diameter 7.925mm, .312inches
Mark 1
Karif
Chinook
Nor'Easter
Adriano
Jim Markey
Similar to the Don Harwood in its rim diameter and rim thickness, but with an inner rim bite similar to the Carbonaria. The cup and throat are similar to the Adriano.
