conductor heads and brackets

<use xlink:href="/assets-global/icons/svg-sprite.svg?v=2020-01-16-193158-cdb8afe-014757#ico_plus"> <use xlink:href="/assets-global/icons/svg-sprite.svg?v=2020-01-16-193158-cdb8afe-014757#ico_minus">

<use xlink:href="/assets-global/icons/svg-sprite.svg?v=2020-01-16-193158-cdb8afe-014757#ico_plus"> <use xlink:href="/assets-global/icons/svg-sprite.svg?v=2020-01-16-193158-cdb8afe-014757#ico_minus">

<use xlink:href="/assets-global/icons/svg-sprite.svg?v=2020-01-16-193158-cdb8afe-014757#ico_plus"> <use xlink:href="/assets-global/icons/svg-sprite.svg?v=2020-01-16-193158-cdb8afe-014757#ico_minus">

<use xlink:href="/assets-global/icons/svg-sprite.svg?v=2020-01-16-193158-cdb8afe-014757#ico_plus"> <use xlink:href="/assets-global/icons/svg-sprite.svg?v=2020-01-16-193158-cdb8afe-014757#ico_minus">

<use xlink:href="/assets-global/icons/svg-sprite.svg?v=2020-01-16-193158-cdb8afe-014757#ico_plus"> <use xlink:href="/assets-global/icons/svg-sprite.svg?v=2020-01-16-193158-cdb8afe-014757#ico_minus">