[**brk-client**](../README.md) *** [brk-client](../globals.md) / MempoolBlock # Interface: MempoolBlock Defined in: [Developer/brk/modules/brk-client/index.js:613](https://github.com/bitcoinresearchkit/brk/blob/acd3d6f42524ece8c85e7b09cc9fdb13b5687b9f/modules/brk-client/index.js#L613) ## Properties ### blockSize > **blockSize**: `number` Defined in: [Developer/brk/modules/brk-client/index.js:614](https://github.com/bitcoinresearchkit/brk/blob/acd3d6f42524ece8c85e7b09cc9fdb13b5687b9f/modules/brk-client/index.js#L614) Total block size in weight units *** ### blockVSize > **blockVSize**: `number` Defined in: [Developer/brk/modules/brk-client/index.js:615](https://github.com/bitcoinresearchkit/brk/blob/acd3d6f42524ece8c85e7b09cc9fdb13b5687b9f/modules/brk-client/index.js#L615) Total block virtual size in vbytes *** ### feeRange > **feeRange**: `number`[] Defined in: [Developer/brk/modules/brk-client/index.js:619](https://github.com/bitcoinresearchkit/brk/blob/acd3d6f42524ece8c85e7b09cc9fdb13b5687b9f/modules/brk-client/index.js#L619) Fee rate range: [min, 10%, 25%, 50%, 75%, 90%, max] *** ### medianFee > **medianFee**: `number` Defined in: [Developer/brk/modules/brk-client/index.js:618](https://github.com/bitcoinresearchkit/brk/blob/acd3d6f42524ece8c85e7b09cc9fdb13b5687b9f/modules/brk-client/index.js#L618) Median fee rate in sat/vB *** ### nTx > **nTx**: `number` Defined in: [Developer/brk/modules/brk-client/index.js:616](https://github.com/bitcoinresearchkit/brk/blob/acd3d6f42524ece8c85e7b09cc9fdb13b5687b9f/modules/brk-client/index.js#L616) Number of transactions in the projected block *** ### totalFees > **totalFees**: `number` Defined in: [Developer/brk/modules/brk-client/index.js:617](https://github.com/bitcoinresearchkit/brk/blob/acd3d6f42524ece8c85e7b09cc9fdb13b5687b9f/modules/brk-client/index.js#L617) Total fees in satoshis