ErgoPlay Troster Guitar Support by MICHAEL TRÖSTER ($66.95 with FREE SHIPPING IN NORTH AMERICA – ADD $6.00 INTERNATIONAL SHIPPING CHARGE [BELOW] FOR ORDERS OUTSIDE THE US/CANADA) I love the Troster Ergo Play guitar rest ($66.95 with FREE SHIPPING) guitar support. The main advantage I have found over the professional model is added height and the curved suction cup holder (see inset photo below). This curved piece allows for greater flexibility in adjusting the suction cups to the contour of your guitar. The Ergoplay Troster ($66.95 with FREE SHIPPING) also includes height adjustment (wing nuts) for the lower support as well as the upper support for maximum adjustability. Ergo-Play Troster Guitar Support: ($66.95 with FREE SHIPPING) Folds to a compacts size for easy storage. I recommend getting extra ErgoPlay Suction Cups ($2.75). They are expensive but I have not been able to find any generic suction cups in the US that will work as well. ErgoPlay Troster Guitar Support: TR101$66.95 International Shipping ChargeAdd this charge for any item with (Free shipping in North America) going outside the US or Canada. International Shipping Charge ISC101$6.00 Ergoplay Replacement Suction Cupbonafide Ergo Play Guitar Support replacement suction cup Ergoplay Replacement Suction Cup EPSC01$2.75